package study;

import cn.hutool.core.convert.Convert;

public class CanDo {
    public static void main(String[] args){
        Boat a=new Boat();
        a.boat();
        Car b=new Car();
        b.car();
        //Boat c=new Trans();
        Trans c= new Boat();
        c.manned();
        Trans d= new Car();
        d.manned();
    }
}
